User manual

182 Publication ENET-UM001I-EN-P - January 2010
Appendix A Status Indicators
I/O Status Indicators
Indicator Description
Digital Inputs There is one status indicator for each digital input point of the
CompactLogix packa
ged controller. When an input is ON, the
corresponding input light is on (amber).
Digital Outputs There is one status indicator for each digital output point of the
CompactL
ogix packa
ged controller. When an output is ON, the
corresponding output light is on (amber).
Analog I/O The analog I/O have one status indicator - the OK status indicator.
If the indi
cator is green, the analog I/O hav
e power, have passed
internal diagnostics, and are communicating properly. If analog
I/O OK indicator is off, a fault is present.
High Speed Counter The high-speed counters have 12 status indicators. Use this table
to int
e
rpret the HSC status indicators.
I/O Status Indicator
Indicator Status Description
0, 1, 2, and 3 Amber The corresponding output is ON.
A0, A1, B0, B1, Z0
and Z1
Amber The corresponding input is ON.
FUSE
Red An overcurrent condition is present.
OK Off No power to the High Speed Counter.
Flashing red, brief The HSC is testing itself; this usually occurs at start-up.
Steady green The HSC is operating normally.
Flashing green The HSC is in Run mode.
Steady red A fault has occurrred.
Flashing red, continuous An HSC configuration error exists.